• Miodrag M Stojanovic, Natasa K Rancic, Marija R Andjelković Apostolović, Aleksandra M Ignjatović, Dijana R Stojanovic, Vesna R Mitic Lakusic, and Mirko V Ilic.
• Faculty of Medicine Nis, University of Nis, 18000 Nis, Serbia.
• Medicina (Kaunas). 2022 Feb 17; 58 (2).

AbstractBackground and Objectives: There were 1,335,503 newly diagnosed cases of the most common gynecological cancers in women (cervical, uterine and ovarian cancer) worldwide in 2020. The main objective of this paper was to assess temporal changes in incidence rates of the most common gynecological cancers and to determine the age group with the greatest increase in incidence in the Serbian female population in the period 2003-2018. Material and Methods: Trends and annual percentage change (APC) of the incidence rate with corresponding 95% confidence intervals (CI) were calculated by Joinpoint regression analysis. The trend was considered to be significantly increasing (positive change) or decreasing (negative change) when the p-value was below 0.05 (p < 0.05). Results: The total number of newly registered cancer cases from 2003 to 2018 was 35,799. There was a significant increase of age standardized rate (ASR) for all cancer incidences in women from 2012 to 2018 with APC 6.9% (95% CI from 0.9 to 13.3, p = 0.028) and for uterine cancer during the 2014-2018 period with APC of 16.8% (95% CI: from 4.0 to 31.1, p = 0.014), as well as for ovarian cancer incidence in the 2012-2018 period with APC of 12.1% (95% CI: from 6.7 to 17.8, p < 0.001). A non-significant decrease of ASRs of incidence for cervical cancer was determined from 2003 to 2015 with APC of -0.22% (95% CI: from -3.4 to 3.1, p = 0.887) and a non-significant increase of ASRs incidence from 2015 to 2018 with APC of 14.21% (95% CI: from -13.3 to 50.5, p = 0.311). The most common gynecological cancers were present in all age groups and only ovarian cancer was registered in the youngest age group (0-4 years). Cervical cancer showed a typical increase after the age of 30, with peak incidence in women aged 40-44 and 65-69 years. The increased incidence trend regarding age for cervical cancer (y = 1.3966x + 0.3765, R2 = 0.3395), uterine cancer (y = 1.7963x - 5.4688, R2 = 0.5063) and ovarian cancer (y = 1.0791x - 0.8245, R2 = 0.5317) is statistically significant. Conclusion: Based on our presented results, a significant increase of incidence trend for the most common gynecological cancers in the Serbian female population from 2012 to 2018 was determined. There has been a significant increase in the incidence of uterine cancer from 2014 up to 2018, as well as for ovarian cancer from 2012 up to 2018, while cervical cancer showed a non-significant decrease of incidence trend from 2003 until 2015 and then a non-significant increase. In women below 20 years of age, ovarian cancer was significantly more prevalent, while cervical cancer was significantly more prevalent in the age groups 20-39 and 40-59 years. In the age group of 60-79, uterine cancer had a significantly higher incidence than the other two cancers. Measures of primary prevention, such as vaccination of children against Human Papilloma Virus and screening measures of secondary prevention, for the female population aged 25 to 64 years of age are needed, as well as educating females about healthy lifestyles via media and social networks to help prevent the most common gynecological cancers.

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